28035472 has 20 divisors (see below), whose sum is σ = 55644876. Its totient is φ = 13675520.

The previous prime is 28035461. The next prime is 28035473. The reversal of 28035472 is 27453082.

It can be written as a sum of positive squares in 2 ways, for example, as 9511056 + 18524416 = 3084^2 + 4304^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28035473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20713 + ... + 22024.

Almost surely, 2^28035472 is an apocalyptic number.

It is an amenable number.

28035472 is a deficient number, since it is larger than the sum of its proper divisors (27609404).

28035472 is a wasteful number, since it uses less digits than its factorization.

28035472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42786 (or 42780 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 28035472 is about 5294.8533501883. The cubic root of 28035472 is about 303.7870738899.

The spelling of 28035472 in words is "twenty-eight million, thirty-five thousand, four hundred seventy-two".